3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?hh $a = array(); $a["123"] = 'abc'; var_dump(array_keys($a,"abc"));
based on IRpBs
Output for 5.4.0 - 5.4.34
Parse error: syntax error, unexpected '$a' (T_VARIABLE) in /in/EgWTc on line 3
Process exited with code 255.